I am simulating forging process in which plastic metal has contact with rigid mold. Could someone help comment on
the difference between node-to-surface and surface-to-surface schemes and especially their performance in accuracy and efficiency ?
While reading the manual, I am confused with the face-to-face penalty method. It’s said “the master and
slave mesh are put on top of each other, the common areas, which are polygons (sides of quadratic elements are approximated by piecewise linear lines), are
identified and triangulated.” I wonder how this “common area” is determined. It appears that the contacting area is a portion of master surface. If so, then what boundary is the contact area ? In the schematic diagram attached below, where the third dimension can be thought of perpendicular to the screen, does this area range from 3’ to 4’ which are projected boundary of slave surface on master surface , or from 2 to 5, which are intersecting lines between master and slave, or from 1’ to 6’, which are also projections of slave boundary ? It’ll be good if some literature on face-to-face penalty method could be referred. I find very little on this method.